#!/usr/bin/env bash
set -euo pipefail

cd "$(dirname "$0")"

shopt -s nullglob
matches=(worker-toolkit-*/repo)
shopt -u nullglob

if [ ${#matches[@]} -eq 0 ]; then
  echo "No worker-toolkit-*/repo folder found, nothing to do." >&2
  exit 1
fi

if [ ${#matches[@]} -gt 1 ]; then
  echo "Multiple worker-toolkit-*/repo folders found, refusing to guess:" >&2
  printf '  %s\n' "${matches[@]}" >&2
  exit 1
fi

target="${matches[0]}"

if [ ! -f "$target/GITFOLDER.zip" ]; then
  echo "$target/GITFOLDER.zip not found, nothing to do." >&2
  exit 1
fi

if [ -d "$target/.git" ]; then
  echo "$target/.git folder already exists, refusing to overwrite." >&2
  exit 1
fi

(
  cd "$target"
  unzip -q GITFOLDER.zip
)

echo "Unzipped $target/GITFOLDER.zip into $target/.git folder."